While Apple is still working on its online store, which is currently down, the company says that the stream will be available using ” Safari 4 or later on Mac OS X v10.6 or later; Safari on iOS 4.2 or later. Streaming via Apple TV requires second- or third-generation Apple TV with software 5.0.2 or later.”

It all begins at 10am PT, 1pm ET and 6pm BST. We will, of course, bring you the latest as it happens.